Home / 19,109.80-26,359.84-13,434.52

Finding the Fourth Proportional to 19,109.80, 26,359.84 and 13,434.52

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Solution

The fourth proportional to 19,109.80, 26,359.84 and 13,434.52 is: 18,531.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.80 : 26,359.84 = 13,434.52 : x
  2. Step 2: Convert to fraction form
    19,109.80/26,359.84 = 13,434.52/x
  3. Step 3: Cross multiply
    19,109.80x = 26,359.84 × 13,434.52
  4. Step 4: Simplify right side
    19,109.80x = 354,131,797.68
  5. Step 5: Solve for x
    x = 354,131,797.68/19,109.80
  6. Step 6: Final answer
    x = 18,531.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.